from moviepy.editor import VideoFileClip

def extract_audio(video_path, audio_path):
    video = VideoFileClip(video_path)
    audio = video.audio
    audio.write_audiofile(audio_path)

# 示例用法
video_path = "./folder/1-声明素材.mp4"
audio_path = "./folder/audio.wav"

extract_audio(video_path, audio_path)